{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x7d751ad0555f579c0093d3d539e17e48fbcd7c13a6e50f064e4b8b3ba19f4644",
    "signature": "0xbd53af9fd6fff5f859ae99da34d7071fc55281ccd9eca44f904755aefc780e2a69e1e6783602a88d89ab1bea4b1e85b999d3157272c110526b9a8b8485c313a11c",
    "signer": "0x58eE21bfFe569da412DF67281f3fD403a5f2F8F6",
    "userId": "764092920"
  }
}