{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xda74e0336a933012f7a6341515d12341d9fc9d28dfc1eb44193ba21377ffd5c2",
    "signature": "0x762cdb60ffc2af461e1b23d258ddf527a5eb9a2d0a5c58b2eae3db8e8076bada303cf7466e1a988a8b45fd7eb086d912904fb5b3c1da4e845920891e5a2967da1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}