{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0x75f238d948f8f06bde5291a75be32db09b5e835f562852bd1d0972de7612cf15",
    "signature": "0x0225a3ee0f545c069459f0531ad25390503f5afe3d07a481f76a9913c7a28f865032520f208b670d8edf36515d6da993a11c39298dc6a1681bbac007d6f4dcbf1b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}