{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa6783d12bcab57ea20e98cf5c8d52beb5564eff1f23d57e1c1381a7bb09b0665",
    "signature": "0x2c88653b69b03c739298d202538e79c4798808eaeabc013c9e92c6cd199b57ab4fc66dea7aaaeb63c636c0cc05e1b703231f33367357c657bb518879eb827e5a1c",
    "signer": "0x32E1FF6F3fFDF435B23912ab8b8e201296286Bbd",
    "userId": "900812229"
  }
}