{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63972",
    "entityType": "User",
    "nonce": "0x89583ede4cb678cf915b4101e567d7016fcd663c30a00e3a325d402c648a74ea",
    "signature": "0xc3553d2d47ec14b67fc8b2eb2dd08352e77ee8ebeb394e1af1f98841adbb63ac11992cfc8a5e37d3affca595f73f61206002510b707a54759b1f016c8c3f09ae1b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}