{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "689125",
    "entityType": "User",
    "nonce": "0x633639280d4d893854bd4bb6f22d5156b9124d96604396b1f2fb8d2fb757d182",
    "signature": "0xdad9453cea1766b9f487c23c5c74b01ceff1c5d9b45240b1d15f98bee477b9e81864b110fc069ed0785d7b286fc061cd7ba3878432721879e2bb83d3c7b6572d1b",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}