{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x84d0c9ab5f0a6117c312051630c04c5a65dafdc27d803c00575854a2dab8bd40",
    "signature": "0x483f8b3a0269acf28c6630f2d6a5a00e3be1ad0ccb9ca0b8d26e43937069253c2205d8c7999e512d7c041fb7cbe6925f1c7062dbda260ec8916d22fd313a113a1b",
    "signer": "0x6ef9E857AE5B806A324ffebCFb096974A556e146",
    "userId": "535738314"
  }
}