{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55940",
    "entityType": "User",
    "nonce": "0x5a54d07f8b0333a8a0b38773f11b6986d2af8f49366e1dab099ce6bb2d0456e7",
    "signature": "0x9c3fd3cf75c2df5d6ecca8a2c8af625566c5dc0d6b9e08aa2398d7bb7bb829a07abbb5367079eb44729b8bc21915de0ca25fc1c82211efa827daf9e8c3da91f11b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}