{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66d6b68b0dbe759aa4e186017711b874b99174330c62405023f7b07876d11ecf",
    "signature": "0x0fe466eb6955d63ef08aec3721fd1f34ec371620539153ac26038955a72f18307514df8fc2be4063e145e0f120a931e8ecfa1f7181b1a12bbabf46660e20212e1c",
    "signer": "0x169229478e16Bd542267C381eCb524742FBcb469",
    "userId": "837850252"
  }
}