{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a2acfe41c95df1a8eb51723cbdc4accf382c9574a6076994e9a7d7595edb425",
    "signature": "0x0633c01e0355cd0d2b301c7434968727dcf2a9a03771dde496aab4db301da3e42a88ae15156eb483a408260bf5cb7c69c34ff474c0266a747292962b57020a051b",
    "signer": "0xCD3D5831A563347C1cd639b09f0c5C5c679Af2D5",
    "userId": "830665049"
  }
}