{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "703513220",
    "entityType": "User",
    "nonce": "0xf0df2fe3195ebdeac7f6f574a2c0d994c26f44a9f27d18f04a528d0bd10fc7a5",
    "signature": "0xbdf7e563a6efe1cd20768873eda35e2113687d3fc1f974ab9f317b1ed3ff1a2445248e605c2df4ab464872c1e892c64df6f865ed76cf430a779657a9523fee361b",
    "signer": "0x1c4e2947b5F9FA4A927a23897193150631C1DA35",
    "userId": "933435942"
  }
}