{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78335",
    "entityType": "User",
    "nonce": "0x7dd6842ce5a7a83980dcaff8c3aaef41a4f6bbe9380459e394f36934675aae95",
    "signature": "0x89c01a232deaaf16ab79a0069cc95b315c5c109a5cdc53c74edf958922635c9f3b33037ad9d0b875ae37e3b67704af32fa2372fe1eb0c26d0804b80fc2fd3fb71b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}