{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x4de1dc91d806b457ff6bfea5fcc184c7f732767845c6c05269b7533cfdd79449",
    "signature": "0xe54dff181ad6a4bacb0c9bb1dabd4611867ec901cfd2025f3fcca1dce0717f5a1e4770b0fef61bc8f4fae52e6ea0d432e21bd604431b0d363c62ac03fc98d9231b",
    "signer": "0x8C7bee798c0AB93Df67Cd00879d67b02274644CF",
    "userId": "855403"
  }
}