{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370924",
    "entityType": "User",
    "nonce": "0x5baf801b80ab843c03a85379af38fc343f29e98591f77c948bbaa8eec5a9a192",
    "signature": "0x0ca8490df96e74a9a5649d7b10ab12da592abda777d258f53d34d5f16ec0b00c7110e638b76e51321dfd4d18acb087a047b6ac73c83c11e0b8400c9b645ce9f11b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}