{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb1be45c38ce2ffec583f1b24d2bb69a9b50fb58c135e95a01d84662cf4977850",
    "signature": "0xef2550e4f54635ca89ff8adcb08ea64d896a32e3b3783e783b669a1b0055c83d36692b7dbb8a185f2427082f7a1a6dde2795b449c0c97d54d056a97f70ecd14e1c",
    "signer": "0xccE1EbC88271bbe505a2F19CC02a4D2Cd91b00a5",
    "userId": "919180073"
  }
}