{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "453551986",
    "entityType": "User",
    "nonce": "0x72740a0b1a4176eeeea8c197098862ba163f0599032c2aa739448614afd9e932",
    "signature": "0x152227ebf91bea4f19e54cc503caca8e23555465c2d6bb1ec0460531773953272673182cfb9fb167819e30f4d83e12af851dd0cdfba97d3bf6f43d2b19de71ae1b",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}