{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xf3d2886436ad99d005a2369a5d8c037860d0c78796358272719b8b3e49d115cb",
    "signature": "0xbb5875e343768dd39f6442c86641bdf0e3d446f8f2c21ae45b2ac94788cd86bd514f01b803ebb1ec17ec4f727590268976c75764479b393ec1c3f56113a6308e1b",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}