{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192393",
    "entityType": "User",
    "nonce": "0xb2b024cf15da8daef1480161e3cc0bf1d1de39aa3720bedf507a8246f40fb565",
    "signature": "0xb6e2f8e389648d0c795e840290032f218a2e1bb5fe003a9b5dfe2b993fc4026d21fda1b3bdfaf47ca6e412bf18ab865d778e48ba3b9c021b76cd177049f04ac51c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}