{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5c97244d9ae2d33e8477112bf4afa40169f29428d498179c173ee819ef8070a1",
    "signature": "0xce6161aca14fefbd75ec6bbfb71837d4a2fde8b7956a165d941fab523eb53c4d0227f3ec98fb739c7bfdc1a0a8ff4c77197c5c50e9658a61e980ee3e2a447dc71b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}