{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60271",
    "entityType": "User",
    "nonce": "0x63821cca4eb36e77d66153e1875124ae27c8cebeee48479bade9c868b24f29fe",
    "signature": "0x23cfed4581eb01a1b14c9a76f454c17b0922ff3e3ed1c1107af298fb14b626e54710cb1d2e828c4cbdf11c81537e824dc18d2b6ffdd6d4b76495c8138c87b4d81c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}