{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1419260",
    "entityType": "User",
    "nonce": "0x506541fc7c7b2da0b3720532f7b9fcd3a4b5c095268a1119b699687edd6af905",
    "signature": "0xa6f9942ae9d2bd4fffe88ca98fee82b9d63687583850710abc761af21c4aa26947c4aefbcc62ef525e156812154e9af442b9944d6e89d321bc2b8a1515fb71111b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}