{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6227546cc92c3d1c6949512a0d1d933ee1048138e1f8f64a16cb7b1dc49218bd",
    "signature": "0xdbe11de526839ce395d1a851071e675b65e018cfee95528dfa9ee4a303ceb7156a3d19f1b2bd934b9931991b66e4b6126e9b68c6a8005d863f167401b04cd1b71c",
    "signer": "0xd8a65dC2d71D6caDA0ef13A84908F90052c425DA",
    "userId": "837557269"
  }
}