{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210566140",
    "entityType": "User",
    "nonce": "0xaa1c32c33edfb9c169a2aa9e1bc41fc239cffea896a117aabb3fac0a4b42af3d",
    "signature": "0xd7d60b5690a3217440479bc2fc2f99da3c0ff1d65447a717a3d103830191da523fdf07ecf07f4eee5ba2773d4f873f676d3b30c364989f505011eb668d43d7cd1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}