{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881171",
    "entityType": "User",
    "nonce": "0x3984f97bc23b54a78b33ee905368503ec08746d6901c71f2f00e84d063423e82",
    "signature": "0x89de1feeaaa37581f519b533119b12bdbaa4e4fc13b98a07157220b9496a2a7b14eb9e6741e2be44a2abc0e0012dfc8be240b35042d5dfd11c24334065a6002d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}