{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987917950",
    "entityType": "User",
    "nonce": "0x0d6315824b12136fc597c8fa08bfb382ee34042895c81a7267ec104a9e24184b",
    "signature": "0x2b4033997dc9b20b671896df3682f3b32e1060593a220aad84995198a73c6d7f747c17545c85a9da0d285b8088bdde64e0917e353ef936e7b563774f0e9667441b",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}