{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x18c95599ea9495fd7cce477f15f312f971d459a44f544782e1f881380d099e85",
    "signature": "0x2316c41f53e8c10d74e703d9163ad0e02e52554d76a394367e97c2d05d63724221075fd6cbd53f3d54a6ff7827c5e6877ddf89284dd776a83e795138deca05621b",
    "signer": "0xCf3E6F9F4BF41C4e355E01484A92aaf61B6dd8a3",
    "userId": "149919577"
  }
}