{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2012591",
    "entityType": "User",
    "nonce": "0x02229f74250f076728a788b2fb012601e5e9d2fbd4a7c952883572d896799365",
    "signature": "0xadb2f3b4921602df1299192ea6f1b8d94f014c4dadb5730445112f28044c7e233ad80802ef0070b4df4c83a68d42efdf1d13519207543a3fbb109bf0b3906f881c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}