{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63889053",
    "entityType": "User",
    "nonce": "0xa21485a645bbe9138249d6bc00f369cb55ced0098cf9b49533a210522be6c14c",
    "signature": "0x32e209a93b45c16de63cd4d2107c7aa722341bcfdffa7e30b546f7f26e8b4b9c5e99f177ad8daa22d883ab47193d1f5eb35eeb8fcaff3ca8c43ecdda49e44ff01c",
    "signer": "0x6015AC6ad37b0328C10a529E70348751FE8ffF41",
    "userId": "176201"
  }
}