{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21606",
    "entityType": "User",
    "nonce": "0x2947373b64a0cf3134a25dbc2c6c8d1df23dee5ced81c1182b49782c30bacf9b",
    "signature": "0xd5c8aa1ac51d31a20f70830b1de0e5301a08795b9bbbd97e7f37f38f8222c92b3d05ffd86650dd5257f84bb04844f3e77604c52e3418d42d3202079c71fdf4fa1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}