{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60981",
    "entityType": "User",
    "nonce": "0xa8f1250f5cebf5088c4b07d7fbd438bfa9afef42c83dbe1ffbfb067d8ebc2fa5",
    "signature": "0x717b3da2164447a5389c1b9731d8a0f7b9f1d5781b6e5f9d3158ac8bd26b205a09d9a5a74ed0455922f5897abd3f0c085b954e5e2b6f2e0a24e0aca75a9805121b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}