{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52141",
    "entityType": "User",
    "nonce": "0x6197c8669f10899e4e034912d8641bad8159c67c871df0aefa849b6a49be8d2f",
    "signature": "0x250dbd76059ece37edb676431099caa86f389300678c302c0d7ccf0cdef753321bcf105472c2cb24d2713cebe0361ca5db69648fcd0e6aa0a7d1bc247d231c231b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}