{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0xa000f9e906dc9423e9275baaf42087fed554c1494b0520d27339cd4aae42b5f9",
    "signature": "0x860c2081d85f9cf4ac6b05245436ec1dc0105b2b705a3c108d148d02a9b551fd206d70664751941bf49be8c97c838c3706fc857e6a83b2294a21b1d15c8fdfbc1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}