{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528459292",
    "entityType": "User",
    "nonce": "0x4d150b05797da875eea61b8ba54f53576e5e81350aae4d822328dd25ec364fea",
    "signature": "0xdccd005f90dad68a494f56c08ffcebeb28eb19ce82d7c46210194459bc66a2665315f067b358d69bd093500e8033588eb9af7e253fe5f14beb33df9623f9c10c1b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}