{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "804508659",
    "entityType": "User",
    "nonce": "0x2f804851055cfb4a7448a1dc642a8d4aa00974307f077b37c6da83369d7eb2f0",
    "signature": "0x0aa2021b99ffe74af659014bec8dce2fe735e93b174b6a7da631eb7813dde46636d34568426bac0bc1e9ed27d697de89168c5e0d05f6a0fe2ac05ad8022d6b7a1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}