{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171154",
    "entityType": "User",
    "nonce": "0x3dd69442f96b61bb39b8ffde2663f57f9f4f638bf90b835ae78059196014f96e",
    "signature": "0x18dead97d812c7a1761d648c9371e26b0be7a93d5a707373c008e9653ba97ed40149568fa953cc9a7e544e42c11f3526ca7b06c6e58385b3c1875f83994bb7b51c",
    "signer": "0xe2b1dcE37383Da05C6DEcaeCeB1e76b1449f1711",
    "userId": "218728810"
  }
}