{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "378116426",
    "entityType": "User",
    "nonce": "0xb1b0068baf5c9bde53e4dc6801ceeecb8916bb37814207c104e971838e386c8e",
    "signature": "0x2bf136783a319c05dd5808e1da74dac095bc892feec75bc6d1be10268e18e6a044299e136163a9df10f53c6ec1d7257bcd6528cf3ae0fcf9c019876e5b3bc8ae1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}