{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304857543",
    "entityType": "User",
    "nonce": "0x86b83620d31600ecf9961fad5c99edd90545312e77762268efd21de13e994d1f",
    "signature": "0x8613c0be0a267cbea82826deeed63ae526232385b0468b77ec68d2cf4d2ad65e600add3a62d0163ad43732c3fcd7a64b4b91988a148d2f5ddc17757d3227ca401c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}