{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac31338f676298fd161fd0fae7bc1ca1570b3c16a5aff014c9a943d9d55a416c",
    "signature": "0xff4daaec3fcbddf753e45a382c5940b5121d016b91e4fddcba28273fad98f551752d9303b5810cd9da4584a6bd0e7851b555acf20a12f53651ef96aadccacb441c",
    "signer": "0x9a5ed0b3F555Cb77D9B73d00AF43BaA4F88b1487",
    "userId": "736503935"
  }
}