{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617072743",
    "entityType": "User",
    "nonce": "0xf676e86f280d3e618dd9849e4108e2a7759762596e32aae88d2ad68a35a0e723",
    "signature": "0xefd30464e89979c213c518858fce5dd96d3eca1a1c4cc704da467bfc70992696659924c06a61c65ab9f0b93a5971400d8737778a5a00ea8232cd8a03d10e71ee1c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}