{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x685cc3c542c130b3a576ad8b3da1be17fc3c0ad79b8dc7c9080fa3395aeed839",
    "signature": "0x7cc7f07a2d1fa13addfc056106bd98f96672e1b9f084f28f9aefa8af61af4e1e26eb85a38fec3f14b0bd0d7343432974f2b1164e072d43ba259c6bb0a08776ff1b",
    "signer": "0x94E5199717b062471aA4261BF1F434c0D6736D26",
    "userId": "252714865"
  }
}