{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7ba79c5e4098074fda23ea8b7b23a80ee0f3d2038714ec71d7749fc58d46c30b",
    "signature": "0x9a5f6aa17fe7d3e02430e8b53c2d176aa40626a1e3ca19cfaff8a5a4c50f15b416a7197c40e2ca75f1beed95c6023945a4b3c4d7000fe14cabddef4fade3b0501c",
    "signer": "0xd20e05DF5b8cb1e52cE88D75a2f412Bb8a61930C",
    "userId": "531366111"
  }
}