{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140683",
    "entityType": "User",
    "nonce": "0x13181d2985aa4b17d08d7d9e55f63741da3a02128fff6a1076d18a9d2c02b20a",
    "signature": "0x3c788b0e8dadd2c5007fb2d69454fe8699c4e42595885b80b232a165f973ad413101de03b1992e434df36abbd8f2caa07d5435b68c936b2fd5ab2a6d3fc563931c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}