{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xce765ee2acf040b87a5a1862bb5032026ab4874e93368918dc5d5791a6096137",
    "signature": "0x785b0fe112b3ed0253df8d98bfc45fa33a2e00ea0ac5e845c8e7a96c029a04520d807bc0886257b7c7feaa3a330f4b922db6aa40f5adb9ea612b299f65134d1d1b",
    "signer": "0x54818C1d1840F835A41084a805899cf92493d969",
    "userId": "701952591"
  }
}