{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6006e5964ccead6a2ebb71c2aaf38848d08accf7dd0c0400e377229ed2b9a682",
    "signature": "0x8385ef33102cb3937dfb5d06dd4041d20df87d2420b213a16689f5efafa9517c4966d3976836db47bb5ada733822aac88c3e131205bfc9a3380036d34a6ba58e1c",
    "signer": "0x1a7241893345b61a9081025D015ef20Fb4212c98",
    "userId": "400294338"
  }
}