{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1855813",
    "entityType": "User",
    "nonce": "0x70f9fb01c0ba5eeada7a76b6706ee162b6599f3b620424e991eb746b73334e9e",
    "signature": "0x33d2f3b86bfa240deed50568822137f630d4b6a01b2c5d33c2e771078fd023c65f999c1379641e72428bd1c90049c8446a8c00d94c9576f556faf681bb2206bf1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}